Sealing-machine.



N0. 865,362. PATENTED SEPT. 10, 1907.

C. P. DAVIS. SEALING MACHINE. APPLICATION FILED DEG.15,1906.

4SHEETS-SHEBT 1.

Wt Inventor.

v1 H8556. Y v A. H. Whatley. I 15 4 2 (Z/2244M "Att OTIL QZA v PATENTED SEPT. 10, 1907. C. F. DAVIS. SEALING MACHINE.

APPLICATION FILED DEU.15,1906.

m Inventor. Witnesses.

W A. H. Wbatley.

Attorney.

m. 865,862. I PATENTED SEPT. 10, 1907. 0. P. DAVIS. SEALING MACHINE. APPLICATION FILED DBO.15.1906.

4 SHEETS-SHEET 3.

In vntor.

ilpy lrrr Attorhe PATENTED SEPT. 10. 1907. C. F. DAVIS.

SEALING MACHINE. APPLIOATIOK FILED 1130.15.1906.

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A. H. Whafley UNITED srn rns CHARLES I". DAVIS, OI PROVIDENCE, ltHODE SEALING AND STAMPING MACHINE r ArsNT OFFICE.

ISLAND, ASSIGNOR TO AUTOMATIC; ENVELOPE COMPANY, A CORPORATION OF RHODE ISLAND.

SE ALING-MACHINE Specification of Letters Patent.

Patented Sept. 10,1907.

Application filed December 15, 1906. Serial No. 347,984.

sealing envelops and has for its objects the ends com-.

monly sought in such machinery.

The invention consists essentially of a novel means of feeding, engaging, conveying and discharging the envelop during the sealing operation, together with a novel means for moistening, the envelop flap.

In the drawings. Figures 1 and 2 are respectively' side and plan elevations of a machine embodying my invcntion. Fig. 3, a longitudinal section of the same on line a, b, of Fig. 2. Figs. 4, 5. (i, transverse sections of same on lines 0 (Z, 6/, and git, respectively of Fig. 2, and Fig. 7, a section of the separating device on line i: l of Fig. 2.

' Like reference characters indicate like parts throughout the views.

A convenient structure for embodying my invention comprises an oblong rectangular case, 1, supported by standards-2, and provided at one end with a shelf or run, 3, which has three longitudinal slots, 4, 5 and 6, and 2 transverse slots, 7 and 8, as shown in Fig. 2. Ver ticalbars, 9, 10, are adjustably secured through their bases, ll. 12, in the slots, 7 and 8, by the adjusting screws, 13 and 14 respectively. A. vertical plate, 16, has a base, 17, connected with the shelf, 3, by an adj usting screwv l8. traversing the slot, 6. The plate, 17 has its upper end bent to form a pivotal bearing, 19, for the inwardly bent end, 20, of a retaining arm, 21.

Fixed to the top of the case, 1, by screws, 22, or 0therwise is a transverse arch or yoke, 23, provided with a vertical dovetail-guide, 24, in which is slidably mounted a separator plate, 25, whoselower end, 26, is outwardly bent and contacts with an inclined strip, 27, fixed to the casing. The upper end of the separator has a rearwardly directed lug, 28, with a perforation, 29, through which loosely passes a thumb screw, 30. Surrounding thescrcw is a compression spring, 31, resting upon the lug, 28, and contacting with the screw head, 32.

Referring to the operating mechanism, tl e machine may be driven by power or hand. In the structure shown 34 is a crank fixed to the driving shaft, 35, mounted transversely in the walls, of the casing t the end opposite to the shelf. Fixed to the shaft, 35, is a driving bevel gear, 36, and a rubber covered roller, 37. The gear meshes with a bevel gear, 38, upon the end of a shaft. 3.), mounted in bloclgs or lugs, 40, 41 and 42, upon the roof of the casing. Also fixed to the shaft, 39, are bevel gears, 43 and 44', the former .lnshing with bevel gear, 45, mounted on a shaft, 46, mounted in bearings, 47, upon the casing. Also fixed to shaft, 46,

is a roller, 48, provided with an annular rectangular depression or groove, 49. This roll being a feed roll, is preferably of rubber. I

The gear, 44, meshes with a bevel gear, 51, mounted on a shaft, 52, supported in a bearing or block, 53, in the casing, 1. Mounted upon the shaft, 52, as shown in Fig. 5, is a disk, 54, provided with a crank pin, 55, to which is pivoted a connecting rod,- 56, engaging by a pin, 57. a lug, 58. upon the bottom, of a plate or rod, 59,

sliding in guide ways, 60, upon the margin of the slot, 5.

The rod, 59, is provided with a longitudinal slot, 61; and resting upon the rod is a block, 62 with a beveled forward surface, 63, terminating at the base of the incline in a shoulder, 64. The block is adjustably fixed to the rod, 59, by a thumb screw, 65, passing through theslot, 5.

Pivoted intermediate its ends to a lug, 67, in the casing by a pin; 68, is a rod, 69, Whose forward portion is curved and has its end, 70, resting in groove, 49, upon the roller, 48'. Longitudinally adjustable upon the other end of said rod, 69, by thumb screw, 72, is a vertical finger, 73, which projects through and above the slot, 4, in the shelf, 3,

Goacting with feed roll, 48, is a similar roll, 75, with channel, 76, and mounted on a shaft, 77, journaled in a frame, 78, which in turn is loosely mounted on a shaft, 79. The frame is downwardly pressed to force the two feed rolls into contact with each other by means of a spiral spring, 80, around the shaft, 79, .whose ends, 81 and 82, press respectively against the yoke, '23 and frame Z8.

Ooacting with roll 37 is a roll 84 provided with annular ribs or corrugations, 85, and mounted upon a shaft, 86, in a frame, 87, loose on shaft, 88. The shaft, 88,='is fixed in uprights, 89, fixed to the casing, l. The frame, 87, is downwardly pressed into contact with roll, 37,- by a spiral spring, 91, upon shaft, 88, whose end, 92, contacts with the'upper surface of theframe Within the casing is a reservoir, 94; supported by an arm, 95, provided with a clamp, 96, and clamping screw, 97, by which it is fixed to the side wall of the casing. Rotat'ably mounted upon a pin, 98, horizon.-

tally journaled in the open top of the reservoir, 94,1is a rubber conical roller, 90. In the rear wallof the reservoir is a vertical pin, 100 on which is rotatably mounted a conical shaped roll, 101, whose lower surface is covered with an absorbent material, 102, which contacts with the surface of the roll, 99. Projecting from the rear wall of the reservoir and upwardly inclined in relation thereto is a pin, 104, upon which. is 'mounted a cylindrical roller,105, which also contacts with the absorbent covering of roll, 101. An'envelop guide plate, 106, is fixed by a screw, 107, to the rear wall of the casing. Integral with plate 106 are envelop margin against the rod 16; and its front margin against the yoke 23. The flaps of the envelops overlap the rear wall of the casing, 1. For different sized envelops the rod, 16, may be adjusted longitudinally by screw, 1.8; and rods, 9 and 10, be adjusted transversely by screws, 13 and 14. The envelops are initially advanced by the reci'prdcating block, 62, whose shoulder, 64, engages.

the lowest of the pack and advances the same intermediate the strip 27 and the end 26 of the separator plate until it isbetween the feed rolls, 75, 48, Whereupon the block 62 returns for another envelop. It will be noted that the inclined strip 27 in connection with the outwardly bent end of the separator device prevents the advance of more than one envelop at a time from the pack, as shown in Fig. 7, wherein 120 represents a packof envelops,and 121 an individual of the pack advanced. The block, 62, is reciprocated by the driving shaft, 85, through gears, 36, 38,s haft 39, gears 44, 51 and connecting rod 56. If accidentally anenvelop should stick before clearing the f eed rolls, it is desirable to prevent the continued successive advance of other envelops from the packtowards said rolls. This end is attained as follows: The feed rolls, which 1 are actuated from shaft, 39, through gears 43 and 45,

convey the envelop to the sealing rolls, 84 and 37. In so doing, the envelop as itadvances depresses into the groove, 49, of the roller, 48, the end of the tilting lever, 69, whereby the finger, 73, rises above the plane of the block, 62 and sustains the envelops in such position until the envelop escapes the feed rolls, l8 and 75, then descendsagain bygravity. The flap of the envelop as it is advanced from the pack is inwardly guided by the plates, 106 and 108, through the rollers, 105 and 101, in contact with the absorbent material 102. This material is saturated with water taken up from the reservoir, 94, by the rubber roll, 99. The flap after its described moistening passes along the deflectingplate, 109, and is forced into permanent contact with the envelop by the sealing rolls through which the envelop finally passes and is discharged. The ribbed surface, 85, of the upper sealing roll, 84, is found superior but not indispensable in the sealing operation. Its main advantage being freedom from sticky accumulations which more readily contaminate a smooth roll I surface.

What I claim is:

1. In a machine of the type set forth, the combination with the feed rolls, of a feed block movable in relation to the feed rolls, means for moving the block toward and away from said rolls and a vertically movable finger actuated by the movement of'the envelop to rise above the plane of. said block and sustain the envelop in such position.

2'. In a machine of thetype set forth the combination with the feed rolls and means for rotating the same, of a feed block movable in relation to the feed rolls, a septic-ab lug device intermediate the block and rolls, a vertically movable finger, and a lever carrying the same and depressible by the moving envelop and means for reciprocating the block and connections between the same and the feedroll actuating means.

3. In a machine of the type set forth the combination with .the feed-block adapted to advance an envelop and means for-reciprocating said block, of a vertically movable finger, and a .lever carrying the some and depl'esslble by the moving envelop a separator strip in the line of travel of the block under whose end the envelop may pass.

4. In a machine of the type set forth the combination with the runway, the feed rolls upon the runway, and means for advancing the. envelop along the runway to the feed rolls, of a yoke upon the runway intermediate the feed rolls and envelop advnnclng..me3 a slldable sep arator plate mounted in the yoke, a. vertically movable finger, and a lever carrying the same and depresslble by the moving envelop and means for downwardly pressing I the plate into contact with the runway.

5. In a machine of the type set forth the combination wlththe runway and means for feeding an envelop to be sealed along the runway, of a flap moistening apparatus cooperating with the runway, said molstenlng apparatus comprising a conical molstening roller with its conical surface diagonally disposed in relation to the runway, 11 presser roll whose side is adapted to contact with the face of the molstenlng roller and a supply roll also conctlng with the face of the molstenlng roller.

6. In a machine of the type set forth the combination with the casing, of a reservoir fixed within the casing, a supply roll mounted in the reservoir, a conical molstenlng roll vertically mounted upon the reservoir wall, an absorberitmatei'lal upon the face of the molstenlug' roll contacting with the supply roll, and a pressei' roll also mounted in the reservoir contacting with the absorbent material upon the moistenlng roll.

'1. In a machine of the type set forth the'comblnatlon with the runway and yoke, of a feed roll mounted iii the runway, a second feed roll resting upon the first and pivotally connected with the yoke, a separator plate ver tically adjustable in said yoke. and spring means for forcing the second sealing roll in contact with the first.

8. In a machine of the type set forth the combination with the feed rolls and a feeding block movable towards and away from the rolls, of means for actuating the rolls and block, and means for raising the articles to be fed. out of the path of the block.

9. In :1 machine of the type set forth, the combination with a lower roller, of a ribbed sealing-roller mounted thereover and a loosely mounted frame in which the shaft of said ribbed roll is carried.

10. [Ii a machine of the typeset forth, a reciprocatory block, a tilting lever actuated by the movement of an envelop, a vertically disposed finger curried by said lever vertical adjustable means for retaining an envelop pack.

I 11. In.a machine of the type set forth 'a reclprocatory block, a tilting lever actuated by the movement 0! an envelop, a vertically disposedv finger carried by said lever 

